%0 Journal Article %A Angulo Vinuesa, Xabier %A Martín López, Sonia %A Corredera, Pedro %A González Herráez, Miguel %T High-resolution Raman-assisted Brillouin sensor based on Differential Pulse-width Pair Technique %D 2012 %@ 0277-786X %U http://hdl.handle.net/10017/26578 %X High sensing resolution in long-distance distributed fiber optic sensors, such as Brillouin Optical Time Domain Analysis (BOTDA), cannot be trivially achieved due to several issues including self-phase modulation, resolution-uncertainty trade-offs and fiber attenuation. These problems could be fixed by the use of differential pulse-pair techniques in combination with Raman amplification. In this work we present a Differential Pulse-width Pair (DPP) Raman-assisted BOTDA sensor, that can achieve 1 meter resolution in a 100 km range. %K Brillouin scattering %K Distributed optic fiber sensor %K Differential pulse-width pair technique %K Raman scattering %K Distributed Raman amplification %K Temperature sensor %K Ciencias tecnológicas %K Electrónica %K Technology %K Electronics %~ Biblioteca Universidad de Alcala